Typewriting machine



G. H. SARGENT TYPEWRITING MACHINE Oct. 16, 1928. 1,688,022

Filed April 28, 1926 BY TORNEY Patented Oct. 16, 1928 UNITED STATES PATENT OFFICE.

GEORGE H. SARGENT, OF TORONTO, ONTARIO, CANADA, ASSIGNOR TO UNDERWOOD ELLIOTT FISHER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE,

TYPEWRITING MACHINE.

Application filed April 28, 1926. Serial No. 105,086.

This invention relates to improvements in typewriting machines for typing on fan-fold webs or loose multi-ply web-forms.

In the patent issued to George W. Benz, No. 1,508,064, of June 16, 1923, is showna machine equipped with a twin carbon-carrier for accommodating two separate webs or packs, either of which may be used while the other is idle, said webs having printed thereon different work-forms, it being only necessary to fold or loop the leading end of the not wanted web backward with its interleaved carbon-sheets through the carbon-carrier, while the wanted web-form is being typed.

The present invention embodies an improvement on the twin carbon-carrier by using a single. carbon-carrier of standard form and novel means for rendering its use eflicient in handling the two webs. I

According to this improvement the carbon-carrier effects a shifting of the carbonsheets, as usual. It moves forwardly with the webs during linefeeding and may be forced baclrwai'dly by a carriage, to which it is detachably connected; the backwardlymoving carriage being effective to strip the carbons from typed forms to new forms while carrying the idle backwardly-looped work-web with it. During this stripping operation, the active web is found to contact with the idle web and thereby move the plies thereof out of registration, sometimes to such an extent that itinterferes with the operation of the active web, and in any event requires a readjustment of the plies of the idle web before it can be inserted around the platen for typing. It is one of the objects of the present invention to prevent this fouling bet-ween the used and idle web-forms. To this end, a broad shelf or separating plate is preferably mounted on a step of said standard carbon-carrier, and positioned between the two sets of work-webs.

When the upper work-web is to be typed upon, the leading end of the lower web may be folded or turned backwardly under the separating shelf, which acts as a guide; while when the lower web is to be typed upon the upper one is accordingly folded back over the separating shelf, which is extended forwardly from its supporting carbon-carrier to an extent suificient to prevent contact of the webform units at all times.

Heretofore when removing work-webs, 1t

whereby a web-form, when once interleaved v with carbon-sheets, may retain or carry its carbons in operative relation at all times, on or off the machine, and until the web-strip is used up.

The guide means above referred to preferably consists of a yoke-shaped. direction or guide bar, having angular end legs or extensions formed with reduced terminals to provide pins to be received in bores or holes near the ends of the usual fixed lower guideebar at the rear of the machine, to support the yoke-shaped guide-bar in parallel detachable relation thereover.

.When it is desired to thread a new set of work-websinto the machine, the lower web is fed forward over the lower fixed bar, while the upper web is passed forward over the upper detachable bar; and so, when it is desired to remove a pair or set of webs from the ma: chine, the upper guide-bar may be raised or detached from the lower fixed bar, after which both webs, with their carbon-carrier (which is also detachable), may be removed as a unit from the machine, the carbon-sheets remainingin interleaved relation with the work-web plies. Then another set of workwebs carrying different interleaved carbonsheets, and their carrier, may be placed as a unit in the machine, and one of the set fed around the platen to the typing position, thus speeding'up the work.

It will be appreciated that the separating plate and the removable guide-bar operate to maintain the two sets of work-webs sepa rated to prevent the possibility of fouling of one by the other durin the carbon-stripping operation, when the idle web moves relatively to theactive or typed Web.

position, and the other turned or folded back under the web-separating plate carried on the detachable carbon-carrier.

Figure 2 is a plan view of the carboncarrier, showing how the web-separating plate is mountedon a step thereof.

Figure 3 is a detail perspective view, or the web-separating plate and .its supporting member.

Figure 4c is a detail perspective view, showing the detachable guidebar and its supporting companionbar.

Referring in detail to the drawings, the usual platen is mounted to revolve in its supporting carriage 11, at the back of which is mounted a work-frame 12. Feed-rolls 13 and 14: co-operate with the platen in the usual manner to feed the work-webs in the operation oi the machine. Mounted on the frame 12 is a carriage 15, including a bed-plate 16, carrying rollers l7, engaging rails 18, by which the carriage is guided in its reciprocatory movements, toward and away, from the platen during feeding and carbon-stripping operations. v

On the bed-plate 16 is mounted the carboncarrier 19, which includes a base-plate 20 resting flat on said bed-plate and having pins 21, which project downwardly through corre sponding openings 22 in the bed-plate and which are formed with slots or keri's 2b to receive keys 2% to lock the plates together. The keys are pivoted at 25 so that the carboncarrier may be readily disconnected from the bedplate of the carriage by swinging the keys out of engagement with the slots, when it is desired to remove the carbon-carrier and its set of work-webs from the machine.

The usual push bar 26 is provided to 'l acilitate the backward movement of the carboncarrier when withdrawing the carb'onsheets from a typed section of the workweb.

The usual stepped blocks 27 of the carboncarrier support the usual carbon-blades 28,

" arranged in the usual staggered relation, and

to which the carbon-sheets 28 are attached in the usual manner.

As here shown, the carbon-blade-supporting blocks 27 have steps or elevations, and, to the third or middle step of one block, I mount a separator-plate 29 carried by a clip-bar 30, which is extended at one end and apertured as at 31, tliirough which aperture a screw or pin 32 is passed to secure the bar and its plate in operative position between the work-web of the set. I

The plate has a bent guide-portion 33 to facilitate the passage of the leading end of the lower work-web when it is turned back under the plate and drawn backwardly through the carbon-carrier as in Figure 1.

At the rear of the machine is arranged the usual fixed direction bar at, over which the lower work-web 35 is fed into the machine between guides 36 carried thereon. Outside of i,ee8,022

the guides the bar 34 is provided with apertures 37 which loosely receive pins or reduced extensions 38 of legs or end portions 39 of a direction or guidebar 40, over which the up pier work-web ll of the set is fed into the ma- 0 nne.

Obviously the bar 40 is readily detachable 7 from its supporting fixed bar 34, so that both work-webs may be lifted from the machine with their associated carbon-carrier when it is desired to substitute another carbon-carrier having similar work-webs, or a single work-web of many plies.

Certain features disclosed herein are claimed in the application of John VValdheim, Serial No. 684,127, filed January 3, 1924; the claims in this application being limited to features not disclosed in said lValdheim application.

Va *iations may be resorted to within the scope oi the invention, and portions of the improvements may be used without others.

Having thus described my invention, I "l im: i

l. The combination with a typewriting machine having a platen and means for feeding one of a set of two work-web packs around said platen, and a. carbon-carrier including carbon-carrying blades having carbons interleaved with the work-webs of both packs, the other pack being tucked back be tween the bladesin a reverse idle loop, of a separator attached to the carrier and positioned between the packs to direct the active webs away from the idle webs so as to prevent friction between the active and idle packs when the carrier is moved rearwardly to strip the carbons oi the active webs, andmeans mounted rearwardly of the carrier for separating the packs to prevent contact of the same asone-moves relatively to the other during the carbon-stripping operation, saic. separator including a plate extending beyond the forward edges of the immediately adjacent carbon-blades to shield said idle loop from contact with the active pack.

2. The. combination with a typewriting machine havin a platen and means for feeding one of a set of two work-web packs around said platen, and a carbon-carrier including carbon-carrying blades having carbons interleaved with the work-webs of both packs, the

other pack being tucked back betweenthe blades in a reverse idle loop, of a separator attached to the carrier and positioned between the packs to direct the active webs away from the idle webs so as to prevent friction between the active and idle packs when the carrier is moved rearwardly to strip the carbons of the active webs. means mounted rearwardly oi the carrier for separating the packs to prevent contact of the same as one moves relatively to the other during. the carbon-stripping operation, and a mounting bar for said separator, said bar being interchangeable with any of said carbonblades to vary the number of carbons and webs in each pack.

chine having a platen, a detachable carboncarrier, and means for feeding one of a plurality of work-webs around the platen, of a clip-bar secured to said carrier between the work-webs, and a separator-plate supported thereby in a horizontal position, said plate extending over the width of saidwebs and forwardly of said carrier and being provided at its forward edge with a bent guide-portion for the lower we t. In combination with a typewriting machine having a platen, a detachable carboncarrier, and means for feeding one of a set of work-webs interleaved .withv carbon-sheets around the platen, a clip-barmounted on a step of the carrier, and a horizontally-arranged separator-plate carried'by said clipbar and extending forward between the webs to prevent contact one with the other. 5. In combinationwith a typewritingma chine having a platen, a carbon-carrier, including carbon-blades, and a feedroll mechanism to feed a workweb including aplurality of plies, or one of a set of two workwebs interleaved with carbon-sheets around the platen, while the other one of the set is folded back in idle position, between the car-' hon-blades, a separator and guideplate positioned between the sets to prevent contact one with another, and a clip-bar engaging the rear edge of the plate and by which said plate is supported from a step of the carrier to move therewith.

6. The combination with a typewriting machine having a platen and means for feeding one of a set of two work-web packs around said platen, and a carbon-carrier including carbon-carrying blades having carbons inter leaved with the work-webs of both packs, the other pack'being tucked back between the blades in a reverse idle loop, of a separator attached to the carrier and positioned be tween the packs to direct the active webs away from the idle webs so as to prevent friction between the active and idle packs, when the carrier is moved rearwardly to strip the carbons of the active webs, and means mounted rearwardly ofthe carrier for separating the packs to prevent contact of the same as one moves relatively to the other during the carbon-stripping operation, said last-mentioned means including a guide-bar for the lower of said packs and a second guide-bar forthe upper pack spaced vertically and horizontally from the first-mentioned guide-bar, both bars being effective to guidet-he webs from the source of supply to the carbon-carrier.

7. In a typewriting machine having a platen and a carriage, means for manifolding either a single web having very many plies, or two superposed webs each having fewer 3. The combination with a typewriting maplies, including a single carbon-carrier equipped with carbon-carrying blades for stripping the carbons alongthe plies of the web, said carbon-carrier being of standard construction and capable of stripping the carbons between the plies of either the web having many plies or the upper and lower webs each having fewer plies, a separator to prevent fouling of the upper web upon the lower web whenever that is folded back between the carbon-carrier blades and the upper Web is shifted relatively to the lower web and vice v'ersa, said. carbon-carrier including a stepped series of mounts for supporting the ends of the blades which carry the carbons, said separator being supported upon one of said mounts, and means located at the rear of the carrier for keeping said webs separated to prevent friction therebetween during the carbon stripping operation.

8. In a typewriting machine havin a platen and a carriage, means for manifol ing either a single web having ver many plies, or two superposed webs each liaving fewer plies, including a single carbon carrier equipped with carbon-carrying blades for stripping the carbons along the plies of the web, said carbon-carrier being of standard construction andcapable of stripping the carbons between the plies of either the Web having many plies or the upper and lower webs each having fewer plies, a separator to prevent fouling of the upper web upon the lower web whenever that is folded back between the carbon-carrier blades and the upper web is shifted relatively to the lower web and vice versa, said carbon-carrier including a stepped series of mounts for supporting the ends of the blades which carry the carbons, said separator being fixed to one of said carbon-carry- .ing blades and detachably held thereby upon one'of said mounts, whereby the number of carbons and plies in each web may be varied, and means located at the rear of the carrier for keeping said webs separated to prevent friction therebetween during the carbonstripping operatlon 9. In a typewriting machine havlng a platen and a carriage, means for manifoldin-g either a single web having very many plies,

or two superposed webs each having fewer plies, lncluding a single carbon-carrier equipped with carbon-carrying blades for stripping the carbons along the plies of the web, said carbon-carrier beingof standard construction and capable of stripping the carbons between the plies of either the web hav- 1ng many plies or the upper and lower webs each having fewer plies, a separator to prevent fouling of the upper web upon the lower web whenever that is folded back between the carbon-carrier blades, and the upper web is shifted relatively to the lower web and vice versa, said separator having a smooth, continuous surface, thereby also serving as a guide for directing the leading edge of the low r idle web rearwardly to pocket it within the carbon-carrier, out of the way of the upper web, and means located at the rear of the carrier for keeping said webs separated to prevent friction therebetween during the carbon-stripping operation.

10. In a typewriting machine, the combination with a platen and a carriage, of a webmanifolding mechanism including a truck in the rear of the platen, a carbon-carrier detachably mounted upon said truck to be removed .t'rom the machine bodily together with the web or webs thereon, said carbon-carrier having in ans for eparating the upper active web from the lower web when the latter i idle,a guiding bar over which the lower idle web runs at the intake end'of the machine, and a second guiding bar above the first and over which the upper web runs at the intake side oi": the machine, the upper guiding bar being detachable whereby the upper guiding bar and the carbon-carrier may be removed from the machine to permit the use or": another carbon-carrier for a web requiring the full capacity of the carbon-carrier.

11. In a typewriting machine, the combination with a platen and a carriage, of a web-manifolding mechanism including a truck in the rear of the platen, a carbon-carrier detachably mounted upon said truck to be removed from the machine bodily together with the web or webs thereon, said carboncarrier having means for separating the up first and over which the upper web runs at the intake'side of the machine, the upper guiding bar being detachable whereby the upper guiding bar and the carbon-carrier may be removed from the machine to permit the use of another carbon-carrier for a web requiring the full capacity of the carbon-car rier, said upper guiding bar being in the form of a yoke having the ends thereof reduced and received in sockets in the lower guiding bar.

12. In a typewriting machine having a platen and a carriage, means for ma-ni'folding either a single web havin very many plies, or two superposed webs each having fewer plies, including a single carbon-carrier equipped with carbon-carrying blades for stripping the'carbons along the plies of the web, said carbon-carrier being of standard construction and capable of stripping the car bons between the plies of either the web hav ing many plies or the upper and lower webs each having fewer plies, a separator to prevent fouling of the upper web upon the lower web whenever that is folded back between the carl'ion-carrier blades and the webs are shifted relatively to each other, and means located at the rear of the carrier for keeping said webs separated to prevent friction therebetween during the carbon-stripping operation.

GEO. n. SARGENT. 

